Ironclad Games is at work on a new game, this time mixing it up by throwing action/MOBA on top of the RTS foundation and also taking in what sounds like medieval influence. Despite adopting the "Sins of a..." name, Sins of a Dark Age, we're told, is in fact a completely new property. It's also free to play.
An online team will work together in Dark Age, made up of one Commander and a small army of Heroes, all after a scenario objective. You'll go up against real opponents or AI in fast-paced matches that allow custom settings and from which you can progress your clan, rank, experience, abilities, items, and unit selection. Replays, leaderboards, and spectator mode are supported.
Unfortunately we've no screenshots or video as of yet, but we'll keep you posted as ever.
Hit the source to reserve your name and try for beta access. The beta and full game should hit sometime this year.